Extending the Gillijns-DeMoor Filter for Distributed Load Estimation on Wind-Turbine Blades
Author
Gutierrez Bea, Guillermo Valentin
Term
4. semester
Education
Publication year
2025
Submitted on
2025-06-30
Pages
56
Abstract
This project examines whether it is possible to determine how forces are distributed along a structure using only acceleration measurements. This is challenging because such problems usually require many sensors or direct force measurements. We propose four methods based on the Gillijns–De Moor Filter (GDF), an estimation approach that is adapted here to address known limitations and to reduce the number of sensors needed. The methods are evaluated through numerical simulations of a beam model (due to time constraints), and we test them under loads with different dynamic properties and varying levels of measurement noise. We compare their performance to assess robustness and accuracy. To confirm applicability in the target scenario, further testing with a wind turbine blade model is planned.
Dette projekt undersøger, om man kan bestemme, hvordan kræfter fordeler sig langs en struktur, ved kun at måle dens acceleration. Det er udfordrende, fordi man typisk har brug for mange sensorer eller direkte kraftmålinger. Vi foreslår fire metoder baseret på Gillijns–De Moor-filteret (GDF), et estimationsværktøj, der her tilpasses for at omgå filterets begrænsninger og for at kunne klare sig med færre sensorer. Metoderne testes i numeriske simuleringer med en bjælkemodel (af tidsmæssige grunde), hvor de udsættes for laster med forskellige dynamiske egenskaber og forskellige niveauer af målenoise. Resultaterne sammenlignes for at vurdere robusthed og nøjagtighed. For at vurdere relevansen i praksis planlægges yderligere tests med en model af en vindmøllevinge.
[This apstract has been rewritten with the help of AI based on the project's original abstract]